1 Wedding invitation costs can range from $1.50 each with do-it-yourself kits from craft stores to $3 or $4 each for mid-range standardized invitations on mid-weight paper to $9 or more each for invitations that use a high-end printing process -- such as engraving or letterpress -- on quality handmade or silk paper. The per-invitation cost goes up with extra folds -- tri-fold costs more than bi-fold -- or lining on the invitations or envelopes. 2  The average couple spends $659 on invitations and reply-cards, according to The Bridal Association of America.
The highest sea-level pressure on Earth occurs in Siberia, where the Siberian High often attains a sea-level pressure above 1050.0 mbar (105.00 kPa, 30.01 inHg), with record highs close to 1085.0 mbar (108.50 kPa, 32.04 inHg).
Above sea level, however, the atmosphere thins. Water is much denser than the atmosphere, and thus weighs more and will exert more pressure on anything submerged in it. As depth increases, the amount of water pushing on water increases, so at lower depths the water is actually denser and weighs more. This means that pressure increases with depth. At sea level, Earth's atmosphere pushes down with about 14 pounds of pressure per every square inch. This is because the gasses in the atmosphere have weight. Above sea level, however, the atmosphere thins.